Description

Protectosil 40 S is a silane based free-flowing, colorless liquid. It is specifically intended for the water repellent impregnation of absorbent mineral facade construction materials. Protectosil 40 S is supplied in ethanolic solution ready for application.



  • Water vapor-permeable, colorless impregnation

  • Non film-forming

  • Effective on hairline cracks up to 0.3 mm

  • Significantly reduces the absorption of water and water-borne contaminants (e.g. chlorides)

  • Very good penetration

  • High alkali resistance

  • Suitable for waterproofing under topcoats

  • Frost resistant


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